Ejemplo n.º 1
0
        /// <summary>
        /// 更新一条数据
        /// </summary>
        public bool Update(Dapper.Model.navigation model)
        {
            StringBuilder strSql = new StringBuilder();
            StringBuilder str1   = new StringBuilder();

            //利用反射获得属性的所有公共属性
            PropertyInfo[]      pros  = model.GetType().GetProperties();
            List <SqlParameter> paras = new List <SqlParameter>();

            strSql.Append("update  " + databaseprefix + "navigation set ");
            foreach (PropertyInfo pi in pros)
            {
                //如果不是主键则追加sql字符串
                if (!pi.Name.Equals("id"))
                {
                    //判断属性值是否为空
                    if (pi.GetValue(model, null) != null)
                    {
                        str1.Append(pi.Name + "=@" + pi.Name + ",");                          //声明参数
                        paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
                    }
                }
            }
            strSql.Append(str1.ToString().Trim(','));
            strSql.Append(" where id=@id ");
            paras.Add(new SqlParameter("@id", model.id));
            return(DbHelperSQL.ExecuteSql(strSql.ToString(), paras.ToArray()) > 0);
        }
Ejemplo n.º 2
0
        /// <summary>
        /// 得到一个对象实体,带事务
        /// </summary>
        public Dapper.Model.navigation GetModel(SqlConnection conn, SqlTransaction trans, string nav_name)
        {
            StringBuilder strSql = new StringBuilder();
            StringBuilder str1   = new StringBuilder();

            Dapper.Model.navigation model = new Dapper.Model.navigation();
            //利用反射获得属性的所有公共属性
            PropertyInfo[] pros = model.GetType().GetProperties();
            foreach (PropertyInfo p in pros)
            {
                str1.Append(p.Name + ",");//拼接字段
            }
            strSql.Append("select top 1 " + str1.ToString().Trim(','));
            strSql.Append(" from " + databaseprefix + "navigation");
            strSql.Append(" where name=@nav_name");
            SqlParameter[] parameters =
            {
                new SqlParameter("@nav_name", SqlDbType.NVarChar, 50)
            };
            parameters[0].Value = nav_name;
            DataTable dt = DbHelperSQL.Query(conn, trans, strSql.ToString(), parameters).Tables[0];

            if (dt.Rows.Count > 0)
            {
                return(DataRowToModel(dt.Rows[0]));
            }
            else
            {
                return(null);
            }
        }
Ejemplo n.º 3
0
        /// <summary>
        /// 得到一个对象实体
        /// </summary>
        public Dapper.Model.navigation GetModel(int id)
        {
            StringBuilder strSql = new StringBuilder();
            StringBuilder str1   = new StringBuilder();

            Dapper.Model.navigation model = new Dapper.Model.navigation();
            //利用反射获得属性的所有公共属性
            PropertyInfo[] pros = model.GetType().GetProperties();
            foreach (PropertyInfo p in pros)
            {
                str1.Append(p.Name + ",");//拼接字段
            }
            strSql.Append("select top 1 " + str1.ToString().Trim(','));
            strSql.Append(" from " + databaseprefix + "navigation");
            strSql.Append(" where id=@id");
            SqlParameter[] parameters =
            {
                new SqlParameter("@id", SqlDbType.Int, 4)
            };
            parameters[0].Value = id;
            DataTable dt = DbHelperSQL.Query(strSql.ToString(), parameters).Tables[0];

            if (dt.Rows.Count > 0)
            {
                return(DataRowToModel(dt.Rows[0]));
            }
            else
            {
                return(null);
            }
        }
Ejemplo n.º 4
0
 /// <summary>
 /// 将对象转换实体
 /// </summary>
 public Dapper.Model.navigation DataRowToModel(DataRow row)
 {
     Dapper.Model.navigation model = new Dapper.Model.navigation();
     if (row != null)
     {
         //利用反射获得属性的所有公共属性
         Type modelType = model.GetType();
         for (int i = 0; i < row.Table.Columns.Count; i++)
         {
             PropertyInfo proInfo = modelType.GetProperty(row.Table.Columns[i].ColumnName);
             if (proInfo != null && row[i] != DBNull.Value)
             {
                 proInfo.SetValue(model, row[i], null);//用索引值设置属性值
             }
         }
     }
     return(model);
 }
Ejemplo n.º 5
0
        /// <summary>
        /// 增加一条数据
        /// </summary>
        public int Add(Dapper.Model.navigation model)
        {
            StringBuilder strSql = new StringBuilder();
            StringBuilder str1   = new StringBuilder(); //数据字段
            StringBuilder str2   = new StringBuilder(); //数据参数

            //利用反射获得属性的所有公共属性
            PropertyInfo[]      pros  = model.GetType().GetProperties();
            List <SqlParameter> paras = new List <SqlParameter>();

            strSql.Append("insert into  " + databaseprefix + "navigation(");
            foreach (PropertyInfo pi in pros)
            {
                //如果不是主键则追加sql字符串
                if (!pi.Name.Equals("id"))
                {
                    //判断属性值是否为空
                    if (pi.GetValue(model, null) != null)
                    {
                        str1.Append(pi.Name + ",");                                           //拼接字段
                        str2.Append("@" + pi.Name + ",");                                     //声明参数
                        paras.Add(new SqlParameter("@" + pi.Name, pi.GetValue(model, null))); //对参数赋值
                    }
                }
            }
            strSql.Append(str1.ToString().Trim(','));
            strSql.Append(") values (");
            strSql.Append(str2.ToString().Trim(','));
            strSql.Append(") ");
            strSql.Append(";select @@IDENTITY;");
            object obj = DbHelperSQL.GetSingle(strSql.ToString(), paras.ToArray());

            if (obj == null)
            {
                return(0);
            }
            else
            {
                return(Convert.ToInt32(obj));
            }
        }